Determination of volumetric machine tool errors by using a ... · Introduction : Volumetric...

French National Metrology Institute LNE-Cnam

Automated Production Research Laboratory of ENS Cachan – Univ Paris Saclay

Determination of volumetric machine tool errors by using a hole-bar

material standard (Multi-Feature Bar – MFB)

PhD Student Fabien VIPREY LNE – LURPA

fabien.viprey@lne.fr

Dr. Ing. Hichem NOUIRA LNE

Dr. Ass Prof Sylvain LAVERNHE LURPA

Prof. Christophe TOURNIER LURPA

Introduction : Volumetric accuracy

2 Fabien VIPREY JRP-TIM: Final Workshop at PTB, May 18th, 2016

5-axis machine tool (Mikron UCP710 at LURPA)

Kinematic Architecture

Rotary Table

Swiveling axis

Rotary Table

Swiveling axis

Gap between theoretical

kinematic and real kinematic

Causes of this effect:

Rotary Table

Swiveling axis

Gap between theoretical

kinematic and real kinematic

Geometric errors ~ 70% - 90%

Thermo-mechanical phenomena

Environmental hazards

Dynamic forces

Vibrations

[Mekid2012]

[Schwenke2008]

Maximum range of relative deviations between actual and ideal position and maximum

range of orientation deviations in the volume concerned, where the deviations are relative

deviations between the tool side and the workpiece side of the machine tool [ISO230-

1,2012]:

The aim of this study is to develop a novel material standard to identify motion errors:

- Usable on CMM, 3 or 5 machine tool, by on-line measurement, to insure

traceable and accurate results

- With large field of its application: Metrology room or Manufacturing shop

Introduction : Literature review

Hole plate

[Trapet1991]

Conventional method [ISO 230], [ISO 10360], [ISO

10791], [ISO 13041], [ISO 3070]

Ball plate

[Bringmann2009]

Ball Bar

[Zhang1991] 1

Hole Bar

[Lim2005]

Laser Interferometry (On-line measurement)

[Schwenke2005], [Chen1999]

Fabien VIPREY JRP-TIM: Final Workshop at PTB, May 18th, 2016

Introduction : Literature review

Hole plate

[Trapet1991]

Conventional method [ISO 230], [ISO 10360], [ISO

10791], [ISO 13041], [ISO 3070]

Ball plate

[Bringmann2009]

Ball Bar

[Zhang1991] 1

Hole Bar

[Lim2005]

Laser Interferometry (On-line measurement)

[Schwenke2005], [Chen1999]

Fabien VIPREY JRP-TIM: Final Workshop at PTB, May 18th, 2016

Hole-Bar

Actual Hole-Bar in litterature:

Identification of an additional parameter:

Fabien VIPREY 5 JRP-TIM: Final Workshop at PTB, May 18th, 2016

Development of a novel Hole-Bar with patterns

maximization of the number of geometric errors to identify for each

position of the Hole-Bar

One linear positioning error Exx

One linear positioning error Exx and

one horizontal straightness Eyx

One linear positioning error Exx and

two straightnesses Eyx and Ezx

Outline

• Development of the Novel Hole-Bar

• Principle

• Technical attributes

• Calibration

• Reversal technique

• Intercomparison

• Application on Machine tool

• Measurement process

• Geometric model

• Results

• Conclusion

The design of the Hole-Bar consists in a repetition of a 3D pattern in one

direction ()

Principle of the new Hole-Bar

JRP-TIM: Final Workshop at PTB, May 18th, 2016 7 Fabien VIPREY

direction ()

[ISO 5459:2011]

direction ()

[ISO 5459:2011]

direction ()

[ISO 5459:2011]

direction ()

[ISO 5459:2011]

direction ()

The identified points Oi = (xi ,yi ,zi) offers 3 intrinsic geometric

parameters: 1 linear positioning and 2 straightnesses

Technical attributes of Hole-Bar (Invar)

Mistake-proofing

First mode of vibration

Setting-up on points of

minimum deformation

Setting-up on points of

minimum deformation Hole-Bar

Work holder

Coordinates of points of interest

Nominal coordinates (3D-CAD model)

Real coordinates (real geometry)

Calibration of the Hole-Bar on accurate

CMM insures traceable

measurements on machine tool

The reversal technique and

substitution technique are applied to

assess the calibration.

Calibration of the Hole-Bar on accurate

CMM insures traceable

measurements on machine tool

The reversal technique and

substitution technique are applied to

assess the calibration.

Calibration: Reversal technique

MFB calibration set-up on

CMM at LNE

Linear positioning error along XHB

CMM at LNE

Measurement

Linear positioning error

along ZCMM

Random error

Nominal

geometry

CMM at LNE

Straightness error along YHB and ZHB

Measurement

Linear positioning error

along ZCMM

Random error

Nominal

geometry

European Participants for intercomparison

NMI Type of CMM Size of CMM

U of CMM

(µm+L(m)xµm)

T in metrology

room (°C)

Operator Signatory of

CIPM MRA

LNE Renault Automotion 251310 2500 x 1300 x 1000 4,5 + L x 4,0 20,26 0,03 Z-axis Fabien Viprey Yes

CMI SIP CMM5 710 x 710 x 550 0.8 + L x 1.3 19,73 0,09 X-axis Pavel Skalník Yes

UM Carl Zeiss UMC 850 1200 x 850 x 600 2,1 + L x 3,3 20,39 0,03 Y-axis Mitja Mlakar Designated by MIRS

PTB UPMC 850 CARAT 850 x 1200 x 600 0.8 + L x 3.5 20,18 0,04 X-axis Norbert Gerwien Yes

LNE Renault Automotion 251310 2500 x 1300 x 1000 4,5 + L x 4,0 20,04 0,03 Z-axis Fabien Viprey Yes

Results: Linear positioning error along XHB

Fabien VIPREY JRP-TIM: Final Workshop at PTB, May 18th, 2016 13

Results: Straightness error along YHB

Results: Straightness error along ZHB

Real time plateform for Identification of geometric errors

Real time

probing

Developed end user interface

F=33,33 kHz

T=30 µs

Resolution = 10 nm

U(k=2) RMP600 = 0,25 µm

Udelay max at 240mm/min = 0,47µm

Probing

trajectory

Mikron UCP710

Geometric model of 3-axis chain of the investigated machine tools

Differential

analysis

Geometric errors effects on the joint

parameters

Identification procedure of motion errors of X-axis

Application on Mikron UCP710 5-axis machine tool:

EXX , EYX , EZX , EAX , EBX and ECX along the X-axis identified on the points of interest Oi of the

Hole-Bar:

Results of identification in the shop floor

EXX in july EXX in december

EYX, and EZX in july EYX, and EZX in december

EAX, EBX, and ECX in july EAX, EBX, and ECX in december

T=201°C T=271°C

Identified geometric errors

depend on the environmental

conditions

T=201°C T=271°C

Identified geometric errors

depend on the environmental

conditions

T=201°C T=271°C

Solutions:

use of climate chamber

compensation of boundary

conditions: several geometric

models which depend on

boundary conditions

Calibration using a Laser Tracer

A variation between the results can be observed definition of end-point reference straight

line (end-points), effects of the angular errors and boundary conditions

Conclusion

• Novel Hole-Bar made of thermo-invariant material (Invar) was defined and developed to

calibrate machine tool

• The design of the Hole-Bar involves several patterns, including cylindrical and plane

geometric entities, useful to extract 12 points of interests providing 3 geometric errors

(linear positioning error and 2 straightnesses) for each selected position

• The developed Hole-Bar was carefully calibrated on an accurate CMM, traceable to the

SI meter definition at LNE

• The reversal technique was applied to calibrate the Hole-Bar in order to separate the

motion errors of the CMM and the true intrinsic parameters of the Hole-Bar

• An intercomparison was shuttled between 4 european NMIs (PTB, CMI, UM, LNE)

• The Hole-Bar was used for the calibration of the Mikron UCP710 machine tool to

evaluate the efficiency

21 Fabien VIPREY JRP-TIM: Final Workshop at PTB, May 18th, 2016 Fabien VIPREY

• Submission of a journal paper about the intercomparison

• Identification of the motion errors of the rotary axes using the Hole-Bar

• Application of a compensation

Dissemination

• 2nd MacroScale International Conference, Wien (Austria), October 2014

• Article submitted for publication in the journal: Precision Engineering

Novel multi-feature bar design for machine tools geometric errors identification

Further works

French National Metrology Institute LNE-Cnam

Automated Production Research Laboratory of ENS Cachan – Univ Paris Saclay

Thank you for your attention!

The authors sincerely thank the EMRP organization. The EMRP is jointly funded by the EMRP participating countries within EURAMET and the European Union (IND62:

JRP-TIM)

Fabien VIPREY – LNE – LURPA fabien.viprey@lne.fr

Christophe TOURNIER – LURPA

Sylvain LAVERNHE – LURPA

Hichem NOUIRA – LNE

Determination of volumetric machine tool errors by using a ... · Introduction : Volumetric...

Documents

Working In Canada Tool French

TOOL DYNAMIC FR

CONVOYEUR MAGNÉTIQUE À AIMANTS …...shearing tool convoyeur magnétique magnetic conve or stacking machine CM-CEM 06/02 R.C. Briey B 645 820 515 Les informations sont données titre

130607 yann-gael gueheneuc - ptidej tool suite

Pd Working In Canada Tool French E9

COMMERCIAL VEHICLE DIAGNOSTIC TOOL

OCEANSUITE: A RADARSAT-2 EXPLOITATION TOOL

Gatling Tool in Action at DevoxxFR 2012

Division ECOROLL TOOL Remarks SIERRA SANDVIK 区分 TOOL 备注 RDO RIOA … · 2012. 9. 13. · Division 区分 ECOROLL TOOL SIERRA TOOL SANDVIK TOOL Remarks 备注 RDO RIOA

SOPRA banking tool PDF

Optimization of tool geometry parameters for rotary

BENCH GRINDER 3900 (F0153900 . . ) - SKIL...8 Bench grinder 3900 INTRODUCTION • This tool is intended as a stationary machine for sharpening of hand tools as well as for grinding

REACH EXCEL TOOL - SPF Economie

Sociallymap - Qualitative automation tool

Tour%%CNC% Model%: Année%de%fabrication%€¢ CNC Fagor 800T IpaR Maquina,sl MAQUINA HERRAMIENTA - MACHINE TOOLS OF EAnnrnn EUROPEAN ASSOCIATION OF MACHINE TOOL MERCHANTS IpaR Control,sl

Tool Kitchen

Mobility Tool Erasmus

NOUVEAU - tool-ag.ch

TOOL Remote monitoring - SITES

Presentation MySponsor Tool FR